What we know so far, (with some expected signings) in terms of the roster:
PG - XXXXXX, Nikola Radicevic
SG - Ognjen Dobric, Branko Lazic, Petar Rakicevic, Stefan Lazarevic
SF - Nemanja Dangubic, Marko Keselj, Aleksa Radanov
PF - XXXXXX, Borisa Simanic, Dejan Davidovac
C - XXXXXX, Milko Bjelica, Djordje Gagic
This is how it looks like. We will have a lot of rotations at SG and SF positions since we have a huge number of players that can play both positions (Dobric, Lazic, Radanov, Rakicevic and Lazarevic are all SG/SF hybrids). We need a starting PG and C as a must and another PF that can defend and rebound, since I would be scared shitless with Simanic and Davidovac (both stretch types) being only PFs on the roster. Bjelica can substitute here as well, but I would prefer another player.
It's obvious that it will be a youth movement and something can be expected long term, but now it's goal to grow the kids and let them improve. I would give my all to add Pullen at PG and then bank my money on a strong defensive center, that can play PnR.